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Mauricio Junio Moura Mendes

@mauriciojuniomourame

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Experienced Java developer specializing in microservices, cloud, and data pipelines.

Brazil

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What I'm looking for

I seek backend/cloud roles building microservices and data pipelines in collaborative teams with strong testing, CI/CD and opportunities to grow in cloud-native technologies.

I am a Software Developer with 10+ years building web applications and cloud-based data processing solutions, certified as an Oracle Java SE 8 Associate and a Certified Scrum Developer. I have deep hands-on experience with Spring Framework, microservices, Spring Batch, Apache Beam/Dataflow and databases like BigQuery, MongoDB and MySQL.

At PayPal and other employers I implemented and maintained microservice-based systems, created and refactored integration and unit tests, developed ETL jobs and batch processors, and contributed to CI/CD, monitoring and API work using OpenAPI. I consistently apply SOLID and Clean Code principles and leverage tools such as Docker, Jenkins, Git/GitHub, TeamCity, Splunk and Datadog.

I enjoy learning modern technologies (Kotlin, Quarkus, Node.js, TDD) and collaborating with cross-functional teams to deliver reliable, maintainable systems; outside work I play guitar, sing and enjoy movies, games and music.

Experience

Work history, roles, and key accomplishments

Java Software Developer

PayPal

Jun 2024 - Nov 2024 (5 months)

Implemented and refactored integration tests and contributed to a private test framework for System of Record applications; developed microservices and batch jobs using Java 17, Spring Boot and Spring Batch to improve test suite reliability and maintainability.

Spring Boot Git Github TeamCity Junit Mockito TestNG

Java Software Developer

PayPal

Dec 2022 - May 2024 (1 year 5 months)

Developed and enhanced Spring Boot microservices and Spring Batch jobs for the Consumer Credit Platform; implemented RESTful APIs, improved testing (JUnit/TestNG/Mockito) and monitored applications with Splunk/Datadog to support credit acquisition workflows.

Java 8 11 Spring Framework RESTEasy Jenkins Docker Git Github Junit Mockito

Java Software Developer

PayPal

Nov 2021 - Jul 2022 (8 months)

Implemented features and tests for microservices supporting a savings product using Spring Boot and Spring Batch; created REST APIs and CI/CD pipelines while participating in code reviews and sprint ceremonies.

Java 8 Spring Boot TestNG Mockito Jenkins

Java Software Developer

Acordo Certo

Mar 2020 - Oct 2021 (1 year 7 months)

Built microservice integrations and ETL data processing pipelines using Apache Beam/Dataflow, BigQuery and Cloud Pub/Sub; implemented CI/CD with Google Cloud Build and GKE and ensured code quality with Sonar.

Apache Beam Dataflow BigQuery Cloud Pub Sub MongoDB MySQL Python GKE

Java Software Developer

Venturus

Feb 2018 - Mar 2019 (1 year 1 month)

Developed microservice-oriented systems using Java 8 and Spring (Boot, Data JPA, Security) for a rewards-points platform, integrating REST services and implementing SSO and persistence layers.

Java 8 Spring Boot & Security REST Gradle Retrofit SSO

Front-End Developer

Venturus

Jan 2017 - Jan 2018 (1 year)

Developed a single-page application using AngularJS, HTML5/CSS3 (Sass) and Rappid/JointJS for a diagramming tool, supported by Node.js-based local tooling and Grunt build automation.

AngularJS HTML5 CSS3 SASS Rappid JointJS Node Grunt

Java Web Developer

Venturus

Feb 2016 - Jan 2017 (11 months)

Implemented backend services for a distributed Java web system for POS testing using Spring Boot, XStream and Jackson while collaborating with international teams.

Java Spring Boot XStream Jackson Junit Distributed Teams REST

Junior Android Developer

Venturus

Feb 2015 - Mar 2016 (1 year 1 month)

Implemented Android applications and developed AR-based apps with Unity 3D to meet product requirements and enhance mobile functionality.

Android Unity Java AR Mobile Development UX

Junior Java Developer

Art IT - Intelligent Technology

Jan 2014 - May 2014 (4 months)

Developed web and mobile market systems using Java technologies including JSF, Spring and Quartz, contributing to platform functionality and stability.

Java JSF Spring Framework Quartz Web Development Backend

Junior PL/SQL Analyst Developer

Art IT - Intelligent Technology

Aug 2012 - Feb 2014 (1 year 6 months)

Analyzed and resolved customer database issues for a major cable provider by developing PL/SQL scripts and automation tools, reducing recurring tickets and improving data reliability.

Pl SQL Oracle Python Scripting Troubleshooting

Software Configuration Manager

Art IT - Intelligent Technology

Aug 2011 - Jul 2012 (11 months)

Supported establishment of software configuration management processes, gaining experience in SCM practices and contributing to project process improvements.

SCM Version Control Process Improvement Build Management Team Collaboration